Differences between candidate EOSs can have a significant
effect on the tidal interactions of neutron stars.
Recently new constraints appeared on the tidal deformability [1]}.
It has been realized [2]} that
the two-solar-mass constraint forces the EOS to be relatively
stiff at low densities. At the same time, the constraint on
\(\Lambda (1.4 \, M_{\odot })\)  sets an upper limit for the stiffness,
constraining the EOS band in a complementary direction.
